Price, Quotation, and Installation Cost for Double-Wall Listening Rooms - Beijing Zhongke Xunda Technology Development Co., Ltd.

I. Application of Audiometric Booth Products:

Otorhinolaryngology diagnostics, otolaryngology health check-ups at physical examination centers, sound field audiometry, behavioral audiometry, hearing aid fitting shops, etc.

II. Specifications for the Background Noise in the Audiometric Room:

Outdoor background noise level: ≤55dB(A); background noise level to be achieved in the hearing room: double-layer <25dB(A) meets the requirements of China's new GB/T16296.1-2018 standard for air conduction and bone conduction.

Three: Design Principles:

Listening room (acoustic listening room) is installed suspended and isolated. The walls are treated with multi-sound technology, providing excellent sound insulation, noise reduction, and absorption. The studio can be equipped with forced ventilation and air exchange, ready for use immediately after installation. The design is scientific, safe, and stable, with a strong resistance to deformation in the material structure. The main modules are assembled in a detachable manner, allowing for quick installation, factory production, and a short assembly time upon arrival at the site.

Four: Structural Features

Overall modular assembly, capable of repeated disassembly and reassembly.

2. Soundproofing aluminum perforated panels with a thickness of 0.9mm are selected for the walls of the audiometric chamber.

3. The exterior walls of the audiometric room are lined with 1.2T galvanized cold-rolled steel sheets, marked as standard.

4. Choice of soundproofing material for the listening room wall sandwich, fire-resistant, eco-friendly sound-absorbing cotton

5. Listening room walls utilize 16mm high-density damping panels

6. Exterior steel plate with baked paint finish, maintaining color without peeling for over 10 years

7. The soundproofing room is constructed with a composite structure featuring silent walls. The overall suspended installation offers all-weather anti-interference capabilities against external noise and vibrations.

8. Acoustic and soundproof wall panels and doors are made of steel, offering a robust structure and good rigidity. They feature an anti-bend and deformation structural design, ensuring flexible door opening.

9. The acoustic booth has a smooth and aesthetically pleasing exterior, with wall coating performance for easy wiping.

Five: Listening Room Acoustic Criteria

At an outdoor ambient noise level of 55 decibels with no abnormal disturbances such as ground pounding, pile driving, impacts, or specific low-frequency noise, the indoor background noise level. Listening room, acoustic field listening room ≤ 25 dB(A), medical room ≤ 25 dB(A).

Six: Listening Room Wall Design

1. The soundproofing room walls include but are not limited to the following materials: 16mm damping density board - galvanized cold steel plate 1.2T - 0.9MM metal micro-perforated acoustic aluminum扣 - sealing materials - sound-absorbing carpet

2. Wall thickness of the audiometric room is determined according to the drawings.

3. Floating Floor: To prevent exterior noise from entering the sensitive area of the listening room from below, the entire room is suspended, resulting in a quiet and vibration-free environment as required for the testing conditions.

4. Soundproof Door: Net door size 1900*800, equipped with steel magnetic silent door for noise reduction, single leaf rotating type

Ventilation and Air Exchange (Sound Dampening Channels)

The listening room is equipped with exhaust fans combined with special acoustic channels for ventilation. The noise level is 35 dB. Acoustic channels are devices that allow air flow but also prevent or reduce sound transmission, serving as an essential measure for removing aerodynamic noise. Fixing sound-absorbing materials on the inner walls of the air flow channels or arranging them in a certain manner within the pipes constitutes an acoustic channel.

Eight: Electrical System Noise Control

The room is equipped with LED lighting to ensure optimal indoor illumination. To maintain a low-noise environment within the room, careful attention must be given to the selection of noiseless lighting fixtures and equipment during the design phase.